template.php

<?php
function foundation_css_alter(&$css) {
  $exclude = array(
    'misc/vertical-tabs.css' => FALSE,
    'modules/aggregator/aggregator.css' => FALSE,
    'modules/block/block.css' => FALSE,
    'modules/book/book.css' => FALSE,
    'modules/comment/comment.css' => FALSE,
    'modules/dblog/dblog.css' => FALSE,
    'modules/filter/filter.css' => FALSE,
    'modules/help/help.css' => FALSE,
    'modules/menu/menu.css' => FALSE,
    'modules/node/node.css' => FALSE,
    'modules/openid/openid.css' => FALSE,
    'modules/poll/poll.css' => FALSE,
    'modules/profile/profile.css' => FALSE,
    'modules/search/search.css' => FALSE,
    'modules/statistics/statistics.css' => FALSE,
    'modules/syslog/syslog.css' => FALSE,
    'modules/system/admin.css' => FALSE,
    'modules/system/maintenance.css' => FALSE,
    'modules/system/system.css' => FALSE,
    'modules/system/system.admin.css' => FALSE,
    'modules/system/system.maintenance.css' => FALSE,
    'modules/system/system.menus.css' => FALSE,
    'modules/system/system.messages.css' => FALSE,
    'modules/system/system.theme.css' => FALSE,
    'modules/taxonomy/taxonomy.css' => FALSE,
    'modules/tracker/tracker.css' => FALSE,
    'modules/update/update.css' => FALSE,
  );
  $css = array_diff_key($css, $exclude);
}

function foundation_preprocess_html(&$variables) {
  
  // Font Awesome
  drupal_add_css('//maxcdn.bootstrapcdn.com/font-awesome/4.6.0/css/font-awesome.min.css', array('type' => 'external'));
}